outdoor AC boundary vacuum load switch
FZW28-12F ( FFK ) type user dividing vacuum load switch ( referred to as the demarcation switch ) used in outdoor column installed occasions, has manual and electric operation function. The switch body is introduced by Toshiba Co of Japan VSP5-12 technology ,the switch is a maintenance-free load switch . Vacuum interrupter and SF6 gas on ground and inter phase insulating medium.
This product conforms to GB3804 AC high voltage load switch: " GBT11022 " and " high voltage switchgear and control gear standards common technical requirements " .
FZW28-12F type dividing vacuum load switch ( FZW28-12 switch and FDR-01 controller ) with fault detection function, protection and control functions and communication functions, installed in the 10kV overhead transmission line, can realize the automatic removal of single-phase grounding fault and automatic isolation of inter phase short circuit fault . Mounting points for 10kV distribution line user line responsibility demarcation point, also can be applied to meet the requirements of the branch line junction.
No. |
Name |
Date |
|
1 |
Method of operation |
Manual or automatic (electromagnetic) |
|
2 |
Rated value |
Rated voltage |
12kV |
Rated current |
630A |
||
Rated short-time withstand current(4S) |
12.5 16 20 |
||
Rated closing short-circuit current(peak) |
31.5 40 50 |
||
Rated frequency |
50Hz |
||
Operating voltage |
AC220V(80%~110~) |
||
3 |
Power frequency withstand voltage(1min) |
On the ground |
42kV |
Alternate with |
42kV |
||
Fracture |
48kV |
||
Two of |
2kV |
||
4 |
Impulse withstand voltage(peak) |
On the ground |
75kV |
Alternate with |
75kV |
||
Fracture |
84kV |
||
5 |
Net weight |
185kg |
|
6 |
SF6 gas rated pressure |
0 psig concentration was above 93% |
|
7 |
Operationg handle power determination |
100~400N |
|
8 |
Main loop resistance |
≤ 500 μ Ω |
|
9 |
(one)closing operation |
184~220V |
1 time off 120~180 ms(220V) |
The minimum switching voltage |
120~160V |
||
(two) tripping operation |
184~220V |
1 time gate The following 1.5s |
|
Minimum maintain suck and voltage |
65~85V |
||
10 |
Isolating fracture and the vacuum arc-extinguishing chamber and operation time difference |
10±2 ms |
|
11 |
Tightness test (leak) |
0.2 Mpa gauge without gas leakAge |
|
12 |
Vacuum interrupters contact distance |
7~9 mm |
|
13 |
Vacuum interrupters contact distance |
3~3.5 mm |
|
14 |
Isolating distance |
25~30 mm |
|
15 |
Isolating distance |
6~13 mm |
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